Classification
363 - Other social problems & services
700 - The arts; fine & decorative arts
333 - Economics of land & energy
17
320 - Political science
16
330 - Economics
14
600 - Technology
14
610 - Medicine & health
13
370 - Education
10
000 - Computer science, information & general works
9
380 - Commerce, communications & transportation
8
900 - History & geography
8
620 - Engineering & allied operations
7
140 - Specific philosophical schools
6
551 - Geology, hydrology & meteorology
6
581 - Specific topics in natural history
5
720 - Architecture
5
100 - Philosophy & psychology
4
300 - Social sciences
3
576 - Genetics & evolution
3
630 - Agriculture & related technologies
3
658 - General management
3
800 - Literature & rhetoric
3
400 - Language
2
500 - Natural sciences & mathematics
2
170 - Ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
340 - Law
1
530 - Physics
1
540 - Chemistry & allied sciences
1